Composite porous dehumidifying material for an HVAC

a technology of porous fibrous and hvac, which is applied in the direction of other chemical processes, heating types, separation processes, etc., can solve the problems of dehumidifying the air and hardly making a difference in reducing the load on the cooling requirement of the air conditioning uni

Inactive Publication Date: 2015-12-15
WORLD ENVIRONMENTAL SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This solution significantly reduces energy consumption and greenhouse gas emissions by enabling reversible water extraction at ambient temperatures, maintaining porosity during swelling, and regenerating using waste heat or low-energy inputs, thus efficiently dehumidifying air while minimizing energy usage.

Problems solved by technology

The pressure exerted by the vapor in the air is higher, so the vapor molecules move from the air to the desiccant, which is typically a layered, hydrophilic alumina silicate matrix that can tie up “liquid” phase water, resulting in dehumidifying the air.
While the above methods have met with commercial success, they unfortunately require large amounts of energy to extract the latent heat of water from air, thus hardly making a difference in reducing the load on the cooling requirement of an air conditioning unit.

Method used

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  • Composite porous dehumidifying material for an HVAC
  • Composite porous dehumidifying material for an HVAC
  • Composite porous dehumidifying material for an HVAC

Examples

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example 3

[0080]System: Vapor Compression Air Conditioner Using Rapid Kinetics Reversible Hydrogel of Present Invention.[0081]Input and output requirements assumed to be same.[0082]Gel absorbs 50% of its weight in water.[0083]2.0 lbs. of gel needed per lb. of water.[0084]Gel Specific Heat Capacity=0.6 BTU / lb.-° F. (measured data)[0085]Gel temperature rise per lb. of water=9° F. (measured)[0086]The carryover heat in this case will be the slight exothermic nature of gel “expansion” when the water vapor deliquesces it.[0087]Cooling by conventional vapor compression remains the same with a COP of 4.0 at a coil temperature of 60° F.

[0088]

TABLE VI90% RH55% RHNo Latent Heat Energy Required As Air Will be Dried By GelWe will need to provide the energy to cool the air from the inlet to outlet condition, and also provide the energy to cool the slight amount of heat generated due to an exothermic nature of gel expansion.Qsensible⁢⁢to⁢⁢beremoved⁢⁢(BTU)=⁢[Massair⁢⁢lbs×Heat⁢⁢Capacity(air)⁢⁢BTUs / lbair×ΔTair...

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Abstract

A composite porous fibrous dehumidifying material comprised of a plurality of fibers whose surface has immobilized thereon a reversible hydrogel material. The composite porous fibrous structure can be used as a dehumidifying material for reducing energy consumption in air conditioning / climate control units. Preferred fibrous materials are electrically conductive materials, such a graphitic fibers.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is based on Provisional Application 61 / 649,221 filed May 18, 2012.FIELD OF THE INVENTION[0002]This invention relates to a composite porous fibrous dehumidifying material comprised of a plurality of fibers whose surface has immobilized thereon a reversible hydrogel material. The composite porous fibrous structure can be used as a dehumidifying material for reducing energy consumption in air conditioning / climate control units. Preferred fibrous materials are electrically conductive materials, such a graphitic fibers.BACKGROUND OF THE INVENTION[0003]A considerable amount of work has been done over the years to remove water from air, some of which have resulted in commercial success. Various reasons exist for humidity removal from ambient air, some of which include the need: a) for reducing discomfort by reduction of sensible heat; b) for maintaining commercial storage places; c) for extracting water from the atmosphere for d...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): C04B41/81B01D53/28B01J20/26F24F3/14B01J20/28
CPCB01D53/28B01J20/267B01J20/28038B01J20/28047F24F3/1411B01D2253/202Y10T442/2484Y10T442/2492
InventorJANGBARWALA, JUZER
OwnerWORLD ENVIRONMENTAL SOLUTIONS